I imagine it's because, by the time we prevail in the final confrontation, she's ready to blow. If you're suggesting that we petrify her before that, then I suppose that's an option, but she'll need an entirely different ending. Perhaps one where you, Dammon, and Wyll ponder over what to do and where to go as she gazes upon you in her petrified state.
No, but see like, Gale literally has the spell to do it right then and there. It’s a 6th level spell. Flesh to Stone.
